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ID: ALA4145597

Journal: ACS Med Chem Lett

Title: BMS-986163, a Negative Allosteric Modulator of GluN2B with Potential Utility in Major Depressive Disorder.

Authors: Marcin LR, Warrier J, Thangathirupathy S, Shi J, Karageorge GN, Pearce BC, Ng A, Park H, Kempson J, Li J, Zhang H, Mathur A, Reddy AB, Nagaraju G, Tonukunuru G, Gupta GVRKM, Kamble M, Mannoori R, Cheruku S, Jogi S, Gulia J, Bastia T, Sanmathi C, Aher J, Kallem R, Srikumar BN, Vijaya KK, Naidu PS, Paschapur M, Kalidindi N, Vikramadithyan R, Ramarao M, Denton R, Molski T, Shields E, Subramanian M, Zhuo X, Nophsker M, Simmermacher J, Sinz M, Albright C, Bristow LJ, Islam I, Bronson JJ, Olson RE, King D, Thompson LA, Macor JE.

Abstract: There is a significant unmet medical need for more efficacious and rapidly acting antidepressants. Toward this end, negative allosteric modulators of the N-methyl-d-aspartate receptor subtype GluN2B have demonstrated encouraging therapeutic potential. We report herein the discovery and preclinical profile of a water-soluble intravenous prodrug BMS-986163 (6) and its active parent molecule BMS-986169 (5), which demonstrated high binding affinity for the GluN2B allosteric site (Ki = 4.0 nM) and selective inhibition of GluN2B receptor function (IC50 = 24 nM) in cells. The conversion of prodrug 6 to parent 5 was rapid in vitro and in vivo across preclinical species. After intravenous administration, compounds 5 and 6 have exhibited robust levels of ex vivo GluN2B target engagement in rodents and antidepressant-like activity in mice. No significant off-target activity was observed for 5, 6, or the major circulating metabolites met-1 and met-2. The prodrug BMS-986163 (6) has demonstrated an acceptable safety and toxicology profile and was selected as a preclinical candidate for further evaluation in major depressive disorder.

CiteXplore: 29795762

DOI: 10.1021/acsmedchemlett.8b00080